Screwable cap for a non-penetrating fastener assembly



FIG. 1 is a perspective view of a screwable cap for a non-penetrating fasterner showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof, with the rear and left and right side elevational views being identical; and

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a screwable cap for a non-penetrating fastener assembly, as shown. 